Biopsychology-lateralisation&split Brain

Question 1

Lateralisation

Answer 1

The theory that the left and right hemispheres have specialist functions

Question 2

Functions of the left hemisphere

Answer 2

Controls the right side of the body
Language
Right visual field

Question 3

Right hemisphere functions

Answer 3

Controls the left side of the body
Spatial tasks
Left visual field
Facial recognition

Question 4

Sperry

Answer 4

Group of severe epileptics who suffered seizures that couldn’t be controlled by drugs
Shown pictures to the left or right visual field, participants covered one eye and looked at a fixed point on a screen, slides projected on either the right or left side at high speed
If a pic was first shown in the left visual field participants didn’t recognise when it appeared in the right but if appeared in the right visual field patient could describe in speech and writing

Question 5

Reductionist

Answer 5

Should consider that there are multiple functions in both hemispheres

Question 6

Sample bias for sperry

Answer 6

Individual differences only 12 people who were used all had severe epilepsy so can’t generalise

Question 7

Controlled assessments

Answer 7

Lab experiment, controlled artificial environment

Scientifically tested but lacks ecological validity

Question 8

Plasticity (disadvantage )

Answer 8

Kitten study sewed the kittens eyes on, shows each hemisphere may not have specific function can adapt and change
Which contradicts laterlisation